12012101000 has 32 divisors (see below), whose sum is σ = 28108318680. Its totient is φ = 4804840000.

The previous prime is 12012100967. The next prime is 12012101011. The reversal of 12012101000 is 10121021.

It can be written as a sum of positive squares in 4 ways, for example, as 7207670404 + 4804430596 = 84898^2 + 69314^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005051 + ... + 6007050.

Almost surely, 2^12012101000 is an apocalyptic number.

12012101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012101000 is an abundant number, since it is smaller than the sum of its proper divisors (16096217680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12012101000 is a wasteful number, since it uses less digits than its factorization.

12012101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12012122 (or 12012108 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12012101000 its reverse (10121021), we get a palindrome (12022222021).

The spelling of 12012101000 in words is "twelve billion, twelve million, one hundred one thousand".